STEICOflex, low carbon insulation

Trees absorb CO2 during photosynthesis and the carbon stays in the wood even when it is processed and transformed.

As a result, 85 kg CO2 is stored per cubic meter STEICOflex and durably removed from the atmosphere. 

In addition, thanks to its outstanding insulating properties, it sustainably reduces heating energy requirements and thus saves CO2 emissions in the long term. Whether new build or renovation - STEICOflex can be used anywhere in the house and offers a whole host of benefits.


Every cubic metre of STEICOflex takes 85 kg of CO2 out of the atmosphere

Further information

More information about formats and technical values:

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For a healthy home

STEICOflex is made out of fresh coniferous wood and it entails no harming ingredients. The IBR is one of the most respected testing institutes in Germany. The IBR test seal certifies that STEICO products are harmless in terms of building biology. They contribute to healthy internal climate and a feeling of well-being in the home.

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Cold protection

With a lambda value of 0.036 W/(m*K) only, STEICOflex has one of the best thermal performance value of any natural insulation materials.  It means that it offers the best cold protection and reduces heating costs. High performance insulation is a good investment: it lowers heating bills and increases the value of the property.

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Excellent heat protection

Thanks to its high heat storage capacity, STEICOflex can buffer summer heat over a period of several hours. The majority of external heat fails to penetrate the building fabric and overheating of the living space is both delayed and reduced. During the evening and night time, when it is cooler, the stored heat can then escape outwards again. Wood fibre insulation materials ensure a better heat protection than synthetic insulation materials.

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Sound protection

STEICOflex makes an important contribution to noise protection. The high bulk density (volume weight) in combination with the unique fibre structure allow for high-performance sound insulation constructions.


Sustainable forestry

STEICOflex is made out of fresh coniferous wood with PEFC certification. A positive CO2 balance can only be achieved by harvesting trees, using their wood for material purposes and replanting young trees, which then actively bind CO2 again.


Roof, wall & floor insulation

STEICOflex can be used in new build or for renovation in roofs, facades and floors. In the attic, the flex batts can be laid between the trusses. It can be used in the roof between the joists or in the facade between wall studs with an ETIC board like STEICOduo dry on top.

STEICOflex can be cut with any kind of saw. It is quick and easy to install, requires no specialist PPE and is an ideal solution for both professional installers and DIY projects.


Attic insulation

Attic floor insulation

Facade insulation

Internal wall insulation

Roof internal insulation

Tutorial - Roof renovation with STEICOflex

Loft insulation

Insulating the loft is an effective and easy way to reduce heating costs


Roof renovation

Climate protection, weather protection and healthy living.


Façade renovation

The high-performance insulation material from nature for healthy homes.


Internal wall insulation (IWI)

The fastest way to improved energy efficiency.